Apparatus for casting chain-links.



W. P. CUNNINGHAM.

APPARATUS'FOR CASTING CHAIN LINKS.

APPLICATION FILED AUG-30' IBIB.

Patented Feb. 25, 1919.

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NI ED sTAT s PAT NroFFioE.

WILLIAM r. CUNNINGHAM, or NoRnrs'rowN, PE NSYLVAN A.

H AIPIPARA'IYU S FOR CASTING CHAIN-LINKS. 4

To all whom it may concern:

Be it known that I, WILLIAM P. GUN

ments in apparatus set forth in my pending application Serial No.2%,034, filed July 9th, 1918.

One object of my invention is to provide means for hardening the bearingsurfaces of the links made in accordance with my invention.

A further object of the invention is to provide a removable chill.

In the accompanying drawing Figure 1, is a plan view of a flask showingthe pattern of a quarter of two links with the chill in position;

Fig. 2, is a sectional view on the line 22, Fig. 1;

Fig. 3, is a perspective View of the chill;

Fig. 4, is a view looking at one end of the chill;

Fig. 5, is a view looking at the opposite end of the chill;

Fig. 6, is an inverted plan view of the chill;

Fig. 7 illustrates sufficient of a mold showing the two chilled sectionsin position to chill the wearing surfaces of the links of the chain;and- Fig. 8, is'a diagrammatic view indicating.

the chilled surfaces of coupled links.

1 is the bottom board and 2 is the flask of the ordinary construction.Secured to the bottom board is a pattern 3, which is onequarter of oneof the links of the chain to be cast. 4 is one-quarter of one of theother links of the chain to be cast. This pattern, in the presentinstance, is made in two parts 5 and 6. The part 5 is the curved sectionforming one-half of the endof the link and this section has a projectingpin 7, which enters a hole in the bottom board 1 so as .to

retain it in place. The other section 6 has a portion 8, which isone-quarter of the pattern of the connecting web which is presentSpecification of Letters iatent.

Patented Feb. 25, 1919.

Application filed August 30, 1918. Serial No. 252,117.

1 in substantially all anchor chains. The sections 5 and 6 areperforated for the reception of a pin 9 which extends through the wallof the flask, as clearly shown in Fig. 2, and retains the pattern inplace while the sand is being rammed around it. The patterns for thegates may be formed in any suitable manner.

In order to harden the surfaces 00 and y of the enchained links, whichbear one upon another, I provide a chill 10 of steel or other suitablematerial. This chill is made as clearly shown in Figs. 3 to 6,inclusive, and has a groove 11 which fits the portion 5 and a groove 12which fits the portion 3. These two grooves are at right angles to eachother, as shown, and flanges 13, which are on each side of the groove11, extend on each side of 1 7 pattern is set in the mold, as clearlyshown in Figs. 1 and 2, with one-half of the chill in position. The sandis then placed in the flask and rammed around the pattern and then thepattern is assembled with like patterns to form a completed link and thechills of two adjoining patterns are in contact, as illustrated in Fi 7,making a complete chill member for t e bearing surfaces of the twoenchained links. The molten metal is poured in any suitable manner intothe mold cavities and that portion of the metal coming in contact withthe chill will be hardened, as indicated in Fig. 8.

I claim 1. In an apparatus for casting chains, the combination of aquarter mold having a mold cavity therein for a portion of two 'chains;a metallic chill having curved grooves at rightangles, one to the other,conso that when two of these molds are assembled a complete chili isformed for the bear.{

ing surfaces ofthejtwoenchained links 3. In an apparatus for castingchains, the

combination ofa mold With a metallic chill having two curved grooves,one at an angle to the other and forming, with the mold, cavities forthe links to be cast, the chill hardening the bearing surfaces of eachof 10 the castlinksey. .w

In Witness whereof I afliX my signature.

WILLIAM P. CUNNINGHAM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington; D. 0.? I

